At Which Stage of Life Is the Percentage of Fluid

question 89

Multiple Choice

At which stage of life is the percentage of fluid in the human body highest?

• A) Infancy
• B) Childhood
• C) Middle age
• D) Advanced age

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Definitions:

Depolarization

A reduction in the difference in electric charge across a cell membrane, which is essential for generating action potentials in neurons and muscle cells.

Repolarization

The process of restoring the negative charge inside the cell membrane after a depolarization event.

Afterpotential

The change in membrane potential that follows the completion of an action potential in nerve cells.

Astrocytes

Star-shaped glial cells in the brain and spinal cord, involved in physical and nutritional support for neurons, and the repair and scarring process following central nervous system injury.